結果
問題 | No.1640 簡単な色塗り |
ユーザー | keijak |
提出日時 | 2021-08-06 22:31:11 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 108 ms / 2,000 ms |
コード長 | 4,377 bytes |
コンパイル時間 | 2,413 ms |
コンパイル使用メモリ | 218,152 KB |
実行使用メモリ | 15,944 KB |
最終ジャッジ日時 | 2024-06-29 15:33:41 |
合計ジャッジ時間 | 12,404 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,812 KB |
testcase_01 | AC | 2 ms
6,812 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 40 ms
9,920 KB |
testcase_05 | AC | 40 ms
9,956 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 36 ms
7,168 KB |
testcase_11 | AC | 29 ms
6,944 KB |
testcase_12 | AC | 26 ms
6,944 KB |
testcase_13 | AC | 56 ms
9,168 KB |
testcase_14 | AC | 56 ms
9,248 KB |
testcase_15 | AC | 19 ms
6,944 KB |
testcase_16 | AC | 22 ms
6,940 KB |
testcase_17 | AC | 45 ms
8,192 KB |
testcase_18 | AC | 5 ms
6,944 KB |
testcase_19 | AC | 25 ms
6,940 KB |
testcase_20 | AC | 35 ms
7,040 KB |
testcase_21 | AC | 28 ms
6,944 KB |
testcase_22 | AC | 4 ms
6,940 KB |
testcase_23 | AC | 38 ms
7,552 KB |
testcase_24 | AC | 11 ms
6,940 KB |
testcase_25 | AC | 27 ms
6,940 KB |
testcase_26 | AC | 42 ms
7,796 KB |
testcase_27 | AC | 18 ms
6,944 KB |
testcase_28 | AC | 53 ms
9,004 KB |
testcase_29 | AC | 41 ms
7,680 KB |
testcase_30 | AC | 8 ms
6,940 KB |
testcase_31 | AC | 55 ms
15,944 KB |
testcase_32 | AC | 47 ms
12,856 KB |
testcase_33 | AC | 33 ms
10,112 KB |
testcase_34 | AC | 41 ms
11,776 KB |
testcase_35 | AC | 24 ms
7,808 KB |
testcase_36 | AC | 9 ms
6,940 KB |
testcase_37 | AC | 13 ms
6,944 KB |
testcase_38 | AC | 41 ms
11,552 KB |
testcase_39 | AC | 19 ms
7,808 KB |
testcase_40 | AC | 17 ms
6,940 KB |
testcase_41 | AC | 37 ms
10,752 KB |
testcase_42 | AC | 19 ms
7,296 KB |
testcase_43 | AC | 26 ms
8,832 KB |
testcase_44 | AC | 26 ms
8,704 KB |
testcase_45 | AC | 20 ms
7,808 KB |
testcase_46 | AC | 8 ms
6,940 KB |
testcase_47 | AC | 7 ms
6,940 KB |
testcase_48 | AC | 59 ms
14,732 KB |
testcase_49 | AC | 4 ms
6,944 KB |
testcase_50 | AC | 2 ms
6,944 KB |
testcase_51 | AC | 2 ms
6,940 KB |
testcase_52 | AC | 63 ms
14,572 KB |
testcase_53 | AC | 108 ms
11,752 KB |
07_evil_01.txt | AC | 152 ms
16,616 KB |
07_evil_02.txt | AC | 240 ms
23,380 KB |
ソースコード
#include <bits/stdc++.h> #define REP_(i, a_, b_, a, b, ...) \ for (int i = (a), END_##i = (b); i < END_##i; ++i) #define REP(i, ...) REP_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define ALL(x) std::begin(x), std::end(x) using i64 = long long; template<typename T, typename U> inline bool chmax(T &a, U b) { return a < b and ((a = std::move(b)), true); } template<typename T, typename U> inline bool chmin(T &a, U b) { return a > b and ((a = std::move(b)), true); } template<typename T> inline int ssize(const T &a) { return (int) std::size(a); } template<typename T> std::istream &operator>>(std::istream &is, std::vector<T> &a) { for (auto &x : a) is >> x; return is; } template<typename T, typename U> std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &a) { return os << "(" << a.first << ", " << a.second << ")"; } template<typename Container> std::ostream &print_seq(const Container &a, std::string_view sep = " ", std::string_view ends = "\n", std::ostream &os = std::cout) { auto b = std::begin(a), e = std::end(a); for (auto it = std::begin(a); it != e; ++it) { if (it != b) os << sep; os << *it; } return os << ends; } template<typename T, typename = void> struct is_iterable : std::false_type {}; template<typename T> struct is_iterable<T, std::void_t<decltype(std::begin(std::declval<T>())), decltype(std::end(std::declval<T>()))>> : std::true_type { }; template<typename T, typename = std::enable_if_t< is_iterable<T>::value && !std::is_same<T, std::string_view>::value && !std::is_same<T, std::string>::value>> std::ostream &operator<<(std::ostream &os, const T &a) { return print_seq(a, ", ", "", (os << "{")) << "}"; } void print() { std::cout << "\n"; } template<class T> void print(const T &x) { std::cout << x << "\n"; } template<typename Head, typename... Tail> void print(const Head &head, Tail... tail) { std::cout << head << " "; print(tail...); } void read_from_cin() {} template<typename T, typename... Ts> void read_from_cin(T &value, Ts &...args) { std::cin >> value; read_from_cin(args...); } #define INPUT(type, ...) \ type __VA_ARGS__; \ read_from_cin(__VA_ARGS__) #ifdef MY_DEBUG #include "debug_dump.hpp" #else #define DUMP(...) #endif using namespace std; struct HopcroftKarp { vector<vector<int> > graph; vector<int> dist, match; vector<bool> used, vv; HopcroftKarp(int n, int m) : graph(n), match(m, -1), used(n) {} void add_edge(int u, int v) { graph[u].push_back(v); } void bfs() { dist.assign(graph.size(), -1); queue<int> que; for (int i = 0; i < (int) graph.size(); i++) { if (!used[i]) { que.emplace(i); dist[i] = 0; } } while (!que.empty()) { int a = que.front(); que.pop(); for (auto &b : graph[a]) { int c = match[b]; if (c >= 0 && dist[c] == -1) { dist[c] = dist[a] + 1; que.emplace(c); } } } } bool dfs(int a) { vv[a] = true; for (auto &b : graph[a]) { int c = match[b]; if (c < 0 || (!vv[c] && dist[c] == dist[a] + 1 && dfs(c))) { match[b] = a; used[a] = true; return (true); } } return (false); } int bipartite_matching() { int ret = 0; while (true) { bfs(); vv.assign(graph.size(), false); int flow = 0; for (int i = 0; i < (int) graph.size(); i++) { if (!used[i] && dfs(i)) ++flow; } if (flow == 0) return (ret); ret += flow; } } void output() { for (int i = 0; i < (int) match.size(); i++) { if (~match[i]) { cout << match[i] << "-" << i << endl; } } } }; auto solve() -> optional<vector<int>> { INPUT(int, n); HopcroftKarp bm(n, n); REP(i, n) { INPUT(int, a, b); --a, --b; bm.add_edge(i, a); bm.add_edge(i, b); } auto matching = bm.bipartite_matching(); DUMP(matching); if (matching != n) return nullopt; DUMP(bm.match); vector<int> ans(n); REP(i, n) { ans[bm.match[i]] = i + 1; } return ans; } int main() { ios_base::sync_with_stdio(false), cin.tie(nullptr); auto ans = solve(); if (not ans) { print("No"); } else { print("Yes"); print_seq(ans.value(), "\n"); } }